Publications and resources

This page contains maps, services, and diagrams relating to Transpower assets.

We have undertaken an investigation of the Value of Lost Load (VoLL) to inform our expenditure decisions and regulatory applications. ...

This 2017/18 Annual Review is an online, integrated report of our activities and their alignment to our six...

Auckland is changing. Rapidly. Roads, housing, technology, industry and electricity. ...

Shaping our draft proposal to the Commerce Commission for our third Regulatory Control Period (RCP3) depends on input from our stakeholders. We appreciate that many of you have shaped...

Tranpower's "Keys to Life" are our key safety expectations for Transpower staff and contractors. They are critical to individual safe work practices.

This Statement of Corporate Intent (SCI) is submitted by the Board of Directors of Transpower New Zealand Limited, in accordance with Section 14 of the State-Owned Enterprises Act 1986 (the...

On 2 March 2017, New Zealand experienced a major and complex power system event. The event resulted in the South Island power system splitting into two separate systems.

We are currently determining a draft process for assessing potential investments in distributed generation, as part of a broader consideration of how transmission alternatives should be...

Addressing climate change, and meeting New Zealand's Paris Agreement commitments, will require our electricity system to begin planning and adapting for the future needs of our...